Process for the production of artificial patent-leather and product thereof



lill

- an a'itilici'al patent appaiatusadapted .application tiled February' To all 'wilma z5 may conocen:

lele it known tliat l', HARRY J. .lL-lAoN, of lileivbui'gh, in the county ot @fange and .in the State of New York, have invented a cei'.'n tain new and useful linproveinent in lli-ocm ceses :for the Pfoduction of Artificial Patent Leather and Products Tbereoi?, and do here by. declare that the following is a lull, clear, and exact description thereof.

lllv invention ielatcs 'to the piodnction of an artificial patent leathei' upon baclnngs other than leather, as loi' example, cloth bookings. I i

llitherto attempts to produce artificial patent leather by applying coatings to cloth have been unsatisfactory and unsuccessful, owing to the tact that the' Weave of the cloth invaiiably showed through the surface ol? the coating, even when, the coating was vathei heavy, .so ,that in order to hide the Weave el the cloth it becamenecessai'y to apply an abnormally large amount el the coating; material. The product containing the large quantity ,of the coating vinateicial was impractical not only because oi the coat oil the materials ifequiied, but because oi the Wei ht oit the product. v

The object ot niy invention. is to produce leathei: upon a cloth leaching; in such a Weave of the cloth, Without the above disadvantages. ln general this is accomplished by applying a coating to a Woven fabric, then embossing the coated fabric with a suitable grain, and thereafter applying one oir more additional coatings until the grain is partially or entirely obscured by the coat My invention is capable of embodiment in inany digerent forms, but for the pur pose of illustration I shall refer only to certain forms thereof herein. Y

lin the drawings l-Tigure \1 represents diagiamrnatically an to cari'y ont my process,

and

ligg. 2 shows an exaggerated cross sec tional view of a :fabric coated in accordance with my procesa. l

l may make use of any of the coating; mateicials otdinarily used, as for example, pyrozylin, solvents, oil and pigment, or oil in combination with pigment. In order to givea patent leather nish to the product manner as to hide theI vingr the coated 'Fabric fpccficatlon ol.' Lettera Patent.

l.' may apply oil alone, such for example as linseed oil, or the oil mixed with pyroxylin and a dye. Jlny, suitable kind of Woven t'abiic may be used in carrying out my invention As one example of carrying out myinvention l may proceed as follows:

llueli oi heavy sateen is fed from the unhatching; roll 1 to doctor blade 2, by means of which coating of a caetoi: oil, pyloxylin and pigmenti mixed in suitable proportions and dissolved in a. solvent, such as acetone oramyl-acetate, is applied until the materials deposited (as rep resented at l) amount to form three to six ounces of solid per square yard@ The surface of the coated material is now embos ed in a suitable shallow grain, such'as a pcb le or shiver. flfhei'eailte similarv coatings Y1,1 are applied by doctor blade '5 until a total of about nine to twelve ounces'of solids for each square yard have beenfapplied, and until the grain has been almost or entirely obscured- A finish coating 12 is then aplPatented Mar. 22,1921. i @,lli. dci'lal No. 7,1%.

mixturdcomprising plied to the coated fabric by doctor blade 7,

so as to give a high glosssuch as that obtained on patent leather. This finishing coat .may contain any o the materials ordinarily applied in the production of artificial leather, that is to say, pyroxylin, linseed oil and dye dissolved in amyl-acetate. In applyincr the coating material the same may be spread over the 'fabric by the use of a doctoreknife, a brush, a slickerboi in any other suitablel way. A tough, elastic material is thus obtained, in which the clothy appearance is obscured, While at the same time the Weight of the coating,r is not excessive. The product, furthermore, resembles patent leather 'very closely. Numerals 3, 6 and 8 denote suitable Solvent recovery apparatus.

While I have described my invention above in detail, I wish it to be understood that many changes nuay be made therein Without departing from the spirit of my invention.

l'v claim: l

1 The process which comprises applying' acoating' material toawoven fabric, embossto obtain a grain sufficient to bide the appearance of clothiness, and then applyingr to the same side of the fabric a further quantity of a permanent coating material,

2. The process which comprises applying a coating material to a woven fabric, nembossmg the coated fabric7 and then applying to the same Side of the fabric a further quantity of coating material until the grain is entirely obscured.

3. The process which comprises applying a coating material to a Woven fabric, embossing the coated fabric to obtain a grain sufiicient to hide the appearance of clothiness, and then applying to the embossed snrn face a further quantity oi a permanent coaing material, the linal coating being a` Ainisliing material to gire a high gloss.

4. The process which comprises applying a coating material to a woven fabric. em-

ybossing the coated fabric, and then apply- 6. An artiicial patent leather con'iprising acloth backing, an embossed coating thereon having a grain suiiicient to hide. the appearance of clothiness, and a further permarient coating located over the embossed coating, the out-.er coating being a finishing coat to give a high gloss.

7. An artilicial patent leather comprising a cloth backing, an embossed coating thereon, and a further coating located over the embossed coating ami obscuring the einbosseil coating. the outer coaiino being a linisl'iing coat to giro a high gl S. The process which coinprres applying a coating mah-rial to a ivoren labric. einbossing the coated iabric to obtain a rain snliicieni' to hillc the api arance ol' clothiness. and then applying to the embossed suriacc a further quantity ol" roaring inaie rial until the grain iis lar; 'cl hiililen.

Si. The, process which comprises applying a coating material to a noien fabric. cnibosing the coating fabric to obtain a grain snl'licienl lo hi lc the appearance oi' clothiness, ami then applying to the on'ibosscil snrface a 'further quantity of a coating material nnlil the grain is largely,Y hidden, the iinal coating beinga finishing material to gire a high gloss.

lli. The process which comprises applyingr to a cloth backing a ioaling oi' material insullicienl to obscure the cloiliiness of the fabric, cinbossii g the. coaleil l'abric to oblaii a `grain suilicicnt to hi lcy the appearance of elothiness, and applying a. linish coating over the einbosaed surface.

in testimoniv that l claim the foregoing l have hereunto set my hand. i

HARK-( J. HON. 

